Hemochromatosis is associated with all features except
**Core Concept**
Hemochromatosis is a genetic disorder characterized by excessive iron accumulation in the body, leading to tissue damage and organ dysfunction. The primary cause is a mutation in the HFE gene, which impairs the regulation of iron absorption. This excess iron can deposit in various organs, including the liver, pancreas, heart, and joints.
**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of hemochromatosis. In this condition, the body absorbs too much iron from the diet, leading to a gradual increase in serum iron levels. As a result, iron can accumulate in the liver, causing cirrhosis, and in the pancreas, leading to diabetes mellitus. Additionally, iron overload can also cause cardiomyopathy, arthritis, and skin pigmentation changes.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because hemochromatosis is indeed associated with cirrhosis of the liver, which is a well-documented consequence of iron overload.
**Option B:** This option is incorrect because diabetes mellitus is a common complication of hemochromatosis, resulting from pancreatic damage caused by iron accumulation.
**Option C:** This option is incorrect because cardiomyopathy is a recognized consequence of iron overload in hemochromatosis, leading to heart failure.
**Option D:** This option is incorrect because skin pigmentation changes, such as hyperpigmentation, are a common feature of hemochromatosis, resulting from iron deposition in the skin.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that hemochromatosis can be asymptomatic for many years, making regular screening for serum iron levels and genetic testing essential for early detection and treatment.
**Correct Answer: D.** Skin pigmentation changes are a feature of hemochromatosis.